Fire door



June 10; 1924. 1,497,024

c. \D. PATTERSON FIRE DOOR Filed Aug. 18, 1923 3 Sheets-Sheet 1v June 10', 1924. 1,497,024

C. D. PATTERSON FIRE moon I Filed Aug. 1a, 1923 s sheds-sheep 2" III June 10, 1924. f 1,497,924 v I c. D. PATTERSON 7 FIRE DOOR Filed Aug. 18, 1923 I5 Sheets-Sheet *5 Patented June 10, 1924.

U "ETE S TAT-ES Liston PAT CLARENCE D. PATTERSON, OF J'AGKSON'VILLE, FLORIDA.

FIRE DOOR.

Application "filed August-18, 1923. Serial No. 658,187.

T all whom it may concern:

Be it known that I, CLARENCEID. PAT- TERSON, a citizen of the-United states, resid ing at Jacksonville, in the county of-Duval and-State ofFlorida, have invented a-new and useful Fire Door, of which the following is a' specification.

-' vide means for locking the doors in their closed positions, novel means being provided for automatically releasing the doors prior to the application of the power for opening the same.

A still further object of the invention is to provide doors of this character which may if desired, be operated manually, the doors being also constructed to-operate independently of each other.

lVith the foregoing and other objects in view which will appear as the-description proceeds, the invention resid'esin the combination and arrangement ofparts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure 1 is a front elevational View of a fire door constructed in accordance with the invention.

Figure 2 is a side elevational viewthereof.

Figure 3 is a longitudinal sectional View through the door operating pistons and housing.

Figure 4 is a longitudinal sectional view through the controlling valve.

Figure 5 is an enlarged detail view disclosing the upper portions of the doors and lower extremity of the piston operating the same. I

Figure 6 is a perspective view of one of the locking dogs.

Figure 7 is a fragmental detail view disclosing the latch operating means.

Referring to the drawings in detail, the reference character 5 designates the door support which is secured to the forward por tion of a fire-box in place of the usual doors. This body portion is formed with a central opening indicated at 6 which opening is nor mally closed by the pivoted doors 7 provided with extensions 8' at their upper ends, the doors being howeverpivotally connected to the 'bodyportionsj '5at 9 or at points laterally .of a verticalline'drawn through the upper extremtyof the door 7.

Supported above the doors 7 and contact- I ing with the upper extremities 8 of the doors 7, is a vertically movable piston 10 operating in the cylinder 11 whichis fed with steam, through. the pipe 12, that is connected with any suitable source of steam supply not shown. Pipe 12 also communicates with the cylinder 13, through the up- .per wall thereof, in which cylinder operates a valve ll normally heldto the limit of its downward movement by means of the coiled spring 15,'the valve 14.- being formed with a central opening 16 through which steam may pass'onits passage to the pipe 12'.

Intake pipes 17 communicate with the cylinder 13 at points adjacent to the lower end thereof, which pipes are adapted to register with the openings 18 in the valve member l t that in turn comunicates with the central opening of the valve.

The pipes 17 are in communication with a suitable source of steam supply not shown, and are supplied with valve members, not shown, for controlling the passage of steam therethrough. The valve cylinder 13 is supported on the laterally extending arm 19 which is formed with a grooved undersurface 20 in which the controlling lever 21 moves, the controlling lever being pivotally connected to the arm 19 at 22. e

Forming a part of the lever 21 is a downwarclly extended portion 23 having its extremity formed into a pedal 24 to. receive the foot of the attendant when it is desired to manually operate the latch members to be hereinafter more fully described. Extending downwardly from the valve 14: is a rod 25 that has pivotal connection with the lever 21 as at 26, whereby movement of the lever will result in a relative movement of the valve 16 or vice versa.

As shown, the lower portion of the body 5 extends downwardly at 27 and is formed with a suitable opening to receive the shaft 28, the ends of which extend beyond the guide members 29 formed integral with the extension 27, and between which guide members the lugs 30 pass, the lugs being carried by the doors.

Mounted on the extended ends of the shaft 28 are latch members 01 that move with the shaft and act to restrict movement of the doors when the doors are in their closed positions, the latch members 31 being of con struction to engage the outer edges of the lugs and prevent pivotal movement of the doors.

Secured to the piston 10 is connecting plate 32 to which is connected the right angled extremity 33 of the operating rod 3%, which rod moves through the bearings 35 and that are arranged in spaced relation with each other. Extending laterally from the rod 34L are pins 37, which pins are engaged by the hook members 38 of the operating lever 39 that has one end thereof, pivotally connected to the lower bearing 35 through the upwardly extended arms 10.

From the foregoing it will be obvious that as the operating lever moves downwardly, the controlling rod 3a is also moved downwardly to. move the doors 7 to their open po sitions. Associated with the lever 39 is a keeper 41 to cooperate with the latch member 42 and hold the lever 39 in various positions of adjustment.

Secured to one end oi the shaft 28 is an arm 43 which when moved operates to move the latch members 31 to their inactive positions.

A rod I4 connects the arm 43 and the lever 21 so that upon movement of the lever 21 in one direction, the latch members 31 will be moved to their inactive positions and out of the path of travel of the lugs 30, allowing the doors to move to their open positions.

If it is desired to move the doors inde pendently of each other, handles 45 are -r'ormedon the doors which handles provide means to be gripped by the operator.

I claim 1. In a device of the character described, a door support, a pair of doors pivotally mounted on the support, a piston moving above the doors, and adapted to engage the doors for moving the doors to their open positions, pivoted latch members disposed adjacent to the lower ends of the doors, means for actuating the latch members to release the doors upon movement of the piston to open the doors, and said latch members adapted to automatically engage the doors and hold the doors in their closed positions.

2. In a device of the character described, a door support, a pair of pivoted doors mounted on the support, means above the doors for moving the doors to their open positions, said doors having lugs extending downwardly therefrom, guide members cooperating with the lugs to hold the doors to the door support, and latch members adapted to engage the lugs for normally holding the doors in their closed positions.

In testimony that I claim the foregoing as my own, I have hereto afiiXed my signature in the presence of two witnesses.

CLARENCE D. PATTERSON. Witnesses: V

J. C. WILKES, J. T. MORTON. 

